An approximate model for three-dimensional alternating current potential drop analyses using a commercial finite element code

  • Sposito G
  • Cawley P
  • Nagy P
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Abstract

Alternating current potential drop (ACPD) is an established technique for non-destructive testing and materials characterisation. Finite element (FE) simulation is a very useful tool for the optimisation of probes and the prediction of test results, but three-dimensional models of ACPD problems are computationally intensive. This paper presents a new, simple model in which frequency-related effects are taken into account by appropriately modifying the geometry of the modelled structure: a DC analysis can then be performed on a smaller domain, thus reducing the computational power required. The results of experimental tests for the validation of the model are also presented and discussed. © 2009 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Finite element method
  • Modelling
  • Potential drop

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Authors

  • Péter NagyBudapesti Muszaki es Gazdasagtudomanyi Egyetem

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  • Giuseppe Sposito

  • Peter Cawley

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